feat(substreams): add substreams for Uniswap v2 and v3

substreams/ethereum-uniswap-v3/src/events/burn.rs

@@ -0,0 +1,45 @@
+use substreams_ethereum::pb::eth::v2::StorageChange;
+use substreams_helper::storage_change::StorageChangesFilter;
+
+use crate::{
+    abi::pool::events::Burn,
+    pb::{tycho::evm::v1::Attribute, uniswap::v3::Pool},
+    storage::{constants::TRACKED_SLOTS, pool_storage::UniswapPoolStorage},
+};
+
+use super::{BalanceDelta, EventTrait};
+
+impl EventTrait for Burn {
+    fn get_changed_attributes(
+        &self,
+        storage_changes: &[StorageChange],
+        pool_address: &[u8; 20],
+    ) -> Vec<Attribute> {
+        let storage_vec = storage_changes.to_vec();
+
+        let filtered_storage_changes = storage_vec
+            .filter_by_address(pool_address)
+            .into_iter()
+            .cloned()
+            .collect();
+
+        let pool_storage = UniswapPoolStorage::new(&filtered_storage_changes);
+
+        let mut changed_attributes =
+            pool_storage.get_changed_attributes(TRACKED_SLOTS.to_vec().iter().collect());
+
+        let changed_ticks =
+            pool_storage.get_ticks_changes(vec![&self.tick_upper, &self.tick_lower]);
+
+        changed_attributes.extend(changed_ticks);
+
+        changed_attributes
+    }
+
+    fn get_balance_delta(&self, _pool: &Pool, _ordinal: u64) -> Vec<BalanceDelta> {
+        // Burn event balances deltas are accounted for by the Collect event.
+        // In the case of a burn, the Collect event amounts will include both the burned amount and
+        // the fees earned.
+        vec![]
+    }
+}